The Rocky Mountain Power Company photograph collection (1876-1992) consist of photos showing historic power stations, the company's acquisitions of smaller companies from 1912 to 1938, as well as a history of the parent company's accomplishments in providing power to the intermountain area. Also included are photos of the construction of various area power plants and alternate power exploration.

The Rocky Mountain Power Company photograph collection (1876-1992) consist of photos showing historic power stations, the company's acquisitions of smaller companies from 1912 to 1938, as well as a history of the parent company's accomplishments in providing power to the intermountain area. Also included are photos of the construction of various area power plants and alternate power exploration.